say for example, Chanel classic Jambo in uk £2990 tax reclaim between 13-15%, hk price is $44600, so at least 20-30% different ga! but all depend which terminal your husband in, cos Chanel, Hermes at T3, but no LV at Heathrow at all. Burberry may have few shops at the airport, so you can check the airport website to see which brand is available for which terminal.